You are assuming you can have address without building.
{% if x.building %}2017-01-26 0:27 GMT+01:00 Richard Hall <[email protected]>: > Hello, I've only just started with Django and need a bit of help steering > myself in the right direction. > > I want to create a page that has a list of possible forms that could be > filled in for a patient in a medical study and differentiate between those > forms which have already been completed and those that have yet to be > started. I have 3 tables: 'Building' which contains the list of forms, > 'Street' which contains the list of patients and 'Address' which records > which form exists for each patient. The relevant bit of models.py looks like > this: > > class Building(models.Model): > crf_code = models.CharField(max_length=6, primary_key=True) > crf_name = models.CharField(max_length=100) > > class Street(models.Model): > village = models.ForeignKey(Village) > patient_number = models.PositiveIntegerField() > initials = models.CharField(max_length=3) > > > class Address(models.Model): > street = models.ForeignKey(Street, related_name='addresses') > building = models.ForeignKey(Building, related_name='addresses') > completed = models.BooleanField(default=False) > > I've created a view that creates two lists, one of all buildings (i.e. forms > that could be entered for a patient) and another of forms already existing, > filtered by patient id: > > def street2(request, patientid): > context_dict = {} > try: > address = Address.objects.filter(street__pk=patientid) > crf = Building.objects.all() > context_dict['address'] = address > context_dict['crf'] = crf > except Street.DoesNotExist: > context_dict['address'] = None > context_dict['crf'] = None > > return render(request, 'trial/street2.html', context_dict) > > My problem comes with relating the two lists to each other in my template. > what I want to do is list the buildings and then, depending if the form > already exists, display an "edit form" or "create form" link: > > <div> > <ul> > {% for x in address %} > <li> > <div>{{ x.building }}</div> > <div> > {% if ???? %} > link to edit form > {% elif %} > link to create form > {% endif %} > </div> > </li> > {% endfor %} > </ul> > </div> > > I'm not sure if I've explained myself clearly; if not I apologize. I'm only > just starting out and am floundering a bit. Any help or guidance would be > hugely appreciated. > > Thank you, > > Richard > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/django-users. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/237bb16a-d76e-42b9-bd46-a7b2f9c43f4c%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- Cordialement, Coues Ludovic +336 148 743 42 -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CAEuG%2BTZ5UE9UnePyay-mApr8BiHJwygN98r8XYLDxNgTf7O9Dg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
